What are the main events and topics discussed in Chapter 43 of the Shri Sai Satcharitra?

Chapter 43 continues the narrative of Sai Baba's passing, which began in the previous chapter. According to the text, it covers several key events leading up to and following his departure. These include Sai listening to the Ramayana as his death drew near, the planning for his Samadhi (tomb), and the significant incident of the 'fall of the brick'. Chapter 43 also recounts a past event where Baba appeared to have left his body for three days, only to return, startling his devotees. Finally, the chapter describes his transition from a manifest, physical form to an unmanifest, omnipresent state.